branch master updated (f99f3f2 -> aa8fff0)

[Ludovic Courtès]

civodul pushed a change to branch master
in repository guix.

      from  f99f3f2   gnu: emacs-constants: Update to 2.6.
       new  787afdd   import: Exit with non-zero when an unknown importer is 
asked.
       new  1495903   import: Gracefully report import failures.
       new  aa8fff0   store: Clarify 'query-path-hash' docstring.

The 3 revisions listed above as "new" are entirely new to this
repository and will be described in separate emails.  The revisions
listed as "adds" were already present in the repository and have only
been added to this reference.


Summary of changes:
 guix/import/gnu.scm     |   48 +++++++++++++++++++++++++----------------------
 guix/scripts/import.scm |   11 +++++++----
 guix/store.scm          |    2 +-
 guix/upstream.scm       |    5 +++--
 4 files changed, 37 insertions(+), 29 deletions(-)